Ignore this. It was caused by a home-grown thread abstraction
always referring to the 'main' thread. It looks like this is the
cause of the other faults I've been having as well.
Cheers
From: fedora-list-bounces@xxxxxxxxxx [mailto:fedora-list-bounces@xxxxxxxxxx] On Behalf Of Simpson, John
Sent: 13 November 2007 09:52
To: fedora-list@xxxxxxxxxx
Cc: Pyle, Andy
Subject: How do I get the same thread id as supplied by 'ps -AL' in LWPcolumn
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Hi
I'm running
2.6.18-1.2786.fc6 and I'm trying to debug an extravagantly threaded program
(sixteen separate threads, not my code).
The problem I've got
is that although each of the threads is uniquely identifiable using 'ps -AL' or
'/proc/PID/task' (information which is also available on creation and
destruction to gdb) I cannot get the same identifiers programmatically.
I've tried pthread_self() and syscall(_NR_gettid) but they just return the
identifier of the initiating thread rather than the thread I'm calling them
from. This makes debugging extremely difficult, for example I can see from
'ps -AL' that some of the threads are doing the <defunct> zombie thing,
but I don't know which ones they are.
Any
suggestions
Thanks
John
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